As Delhi Gymkhana Club faces eviction over national security concerns, a forgotten Cold War episode has resurfaced. Former CIA officer Robert Baer claimed in his memoir that the elite Delhi club played a crucial role in a covert operation to obtain classified T-72 tank manuals from Indian sources in the late 1970s. The documents, described as the CIA's "Holy Grail", reportedly helped the United States assess one of the Soviet Union's most advanced battle tanks. The story sheds light on India's role in Cold War espionage, the CIA's hunt for Soviet military secrets and the cat-and-mouse game between American operatives and India's Intelligence Bureau.